A Portable System For Acquiring Physiological Signal

The blood pressure, heart rate, temperature and electrocardio are the four of most important physiology parameters of human body, accurate measurement of the blood pressure, the heart rate, the temperature and describes the electrocardiogram are playing vital role to monitor the health of human body. In this paper, a Portable system acquiring blood pressure and temperature parameters was designed which used oscillography measuring blood pressure, heart rate and used the constant-current method measuring temperature use heart conductance league method measuring electrocardio. It chose the BP300T as its pressure sensor, the MF52B as its temperature sensor, electrode ball and cable to acquisite ECG signal and made signal processing by ATMega32, the main chip of the system, then used the12864liquid crystal to display the result which is including systolic blood pressure, diastolic blood pressure, heart rate and body temperature. The system can be used conveniently and be easy to operation and the results are displayed clearly and obviously.